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2. Which of the following materials is absent when coal is formed? A. carbon B. oxygen C. water D. hydrogen
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Dec 2, 2023
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2. Which of the following materials is absent when coal is formed?
A. carbon
B. oxygen
C. water
D. hydrogen
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Answer:
A carbon
Step-by-step explanation:
Takehiro Adachi
answered
Dec 7, 2023
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Takehiro Adachi
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